CVE-2021-1267
MEDIUMDescription
A vulnerability in the dashboard widget of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by crafting an XML-based widget on an affected server. A successful exploit could cause increased memory and CPU utilization, which could result in a DoS condition.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Exploit Intelligence
Moderate risk: more likely to be exploited than 60% of all known CVEs.
References
Related Vulnerabilities
Other CWE-776 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2009-1955 | High | 7.5 | 53% | - | Fix |
| CVE-2017-18640 | High | 7.5 | 27% | - | Fix |
| CVE-2019-11253 | High | 7.5 | 26% | - | Fix |
| CVE-2019-12401 | High | 7.5 | 7.4% | - | - |
| CVE-2023-20052 | Medium | 5.3 | 7.0% | - | Fix |
| CVE-2019-15903 | High | 7.5 | 6.6% | - | Fix |
Common questions
How do I fix CVE-2021-1267?
Upgrade secure firewall management center to 6.6.1 or later.
Is CVE-2021-1267 being actively exploited?
Not that we know of. CVE-2021-1267 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 60% of all scored CVEs.
How severe is CVE-2021-1267?
CVE-2021-1267 has a CVSS v3 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2021-1267 affect?
Published advisories record a fix for secure firewall management center (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-26.